Europe’s share of global clinical trials activity has decreased over the last ten years, falling from 25.6% to 19.3% in 2020 [1]. Nevertheless, the region remains a hotbed for biotech innovation, with half of today’s biotech companies based in France, Germany, and the United Kingdom [2]. And for companies like those developing cell and gene therapies in challenging indications, Europe is a necessary element for conducting successful global clinical trials, with its sizeable patient population – roughly three times as much as the equivalent US cohort for select indications [3].